Results 41 to 50 of about 197,531 (156)

Lean Limit Phenomena [PDF]

open access: yes, 1983
The influence of stretch and preferential diffusion on premixed flame extinction and stability was investigated via two model flame configurations, namely the stagnation flame and the bunsen flame.
Law, C. K.
core   +2 more sources

Preparation and characterization of bis-[1,3,5]triazinyl diazenes and their utilization as flame retardants in polypropylene films [PDF]

open access: yes, 2014
A series of bis-[1,3,5]triazinyl diazenes and two metal complexes thereof were synthesized and tested as new flame retardants in polypropylene films. It was observed that electron withdrawing triazinyl ring substituents (i.e.
Aelmans   +40 more
core   +1 more source

Effect of thermal expansion on the linear stability of planar premixed flames for a simple chain-branching model: The high activation energy asymptotic limit [PDF]

open access: yes, 2008
The linear stability of freely propagating, adiabatic, planar premixed ames is investigated in the context of a simple chain-branching chemistry model consisting of a chain-branching reaction step and a completion reaction step.
G. J. Sharpe   +2 more
core   +1 more source

A fast, low-memory, and stable algorithm for implementing multicomponent transport in direct numerical simulations [PDF]

open access: yes, 2019
Implementing multicomponent diffusion models in reacting-flow simulations is computationally expensive due to the challenges involved in calculating diffusion coefficients.
Beardsell, Guillaume   +4 more
core   +2 more sources

Impact of the Flame-Holder Heat-Transfer Characteristics on the Onset of Combustion Instability [PDF]

open access: yes, 2013
In this article, we investigate the impact of heat transfer between the flame and the flame-holder on the dynamic stability characteristics of a 50-kW backward-facing step combustor. We conducted a series of tests where two backward step blocks were used,
Ghoniem, Ahmed F.   +3 more
core   +1 more source

Combustion Characteristics of Sinusoidal-Shaped Walls with Catalyst Segmentation in Micro-Combustors for Micro-Thermophotovoltaic Application

open access: yesEnergies
The combustion characteristics of micro-combustors significantly impact the performance of micro-thermophotovoltaic (MTPV) systems. This study aims to investigate the effects of sinusoidal-shaped walls and catalyst segmentation on flame stability and ...
Qi Yuan, Zhiping Guo, Yuan Li
doaj   +1 more source

Flame Instability and Transition to Detonation in Supersonic Reactive Flows

open access: yes, 2017
Multidimensional numerical simulations of a homogeneous, chemically reactive gas were used to study ignition, flame stability, and deflagration-to-detonation transition (DDT) in a supersonic combustor.
Center   +4 more
core   +1 more source

Hydrogen Safety by Design: Exclusion of Flame Blow-Out from a TPRD

open access: yesHydrogen
Onboard hydrogen storage tanks are currently fitted with thermally activated pressure relief devices (TPRDs), enabling hydrogen to blowdown in the event of fire.
Mina Kazemi   +2 more
doaj   +1 more source

Flammability and Thermal Properties of Rigid Polyurethane Foams Containing Wheat Straw Lignin [PDF]

open access: yes, 2013
Due to development of new generation of biomass processing, the examination of novel lignin products for creation of lignin-containing PU remains actual up to now.
Arshanitsa, Alexandr   +2 more
core   +1 more source

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